TABLE Characteristics of DNA polymerases in E. coli 3' -5' Polymerase Exonuclease Exonuclease Activity 5' - 3' 5'-3' DNA Polymerase Activity Activity Function Removes and replaces primers Yes Yes Yes II DNA repair; restarts replication after damaged DNA halts synthesis Yes Yes No III Yes Yes No Elongates DNA IV Yes No No DNA repair Yes No No DNA repair; translesion DNA synthesis
TABLE Characteristics of DNA polymerases in E. coli 3' -5' Polymerase Exonuclease Exonuclease Activity 5' - 3' 5'-3' DNA Polymerase Activity Activity Function Removes and replaces primers Yes Yes Yes II DNA repair; restarts replication after damaged DNA halts synthesis Yes Yes No III Yes Yes No Elongates DNA IV Yes No No DNA repair Yes No No DNA repair; translesion DNA synthesis
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Which of the DNA polymerases shown in Table have the ability to proofread?

Transcribed Image Text:TABLE
Characteristics of DNA polymerases in E. coli
3' -5'
Polymerase Exonuclease Exonuclease
Activity
5' - 3'
5'-3'
DNA
Polymerase Activity
Activity
Function
Removes and replaces
primers
Yes
Yes
Yes
II
DNA repair; restarts
replication after damaged
DNA halts synthesis
Yes
Yes
No
III
Yes
Yes
No
Elongates DNA
IV
Yes
No
No
DNA repair
Yes
No
No
DNA repair; translesion
DNA synthesis
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